Symmetric logarithmic derivative of Fermionic Gaussian states

6533b870fe1ef96bd12cfe01

RESEARCH PRODUCT

Symmetric logarithmic derivative of Fermionic Gaussian states

Davide Valenti Angelo Carollo Bernardo Spagnolo

subject

Fermionic Gaussian state Settore FIS/02 - Fisica Teorica Modelli E Metodi Matematici quantum geometric information High Energy Physics::Lattice Gaussian FOS: Physical sciences General Physics and Astronomy lcsh:Astrophysics quantum metrology; Fermionic Gaussian state; quantum geometric information condensed_matter_physics 01 natural sciences Article 010305 fluids & plasmas symbols.namesake Quantum mechanics lcsh:QB460-466 0103 physical sciences Thermal Quantum metrology Logarithmic derivative lcsh:Science 010306 general physics Mathematical physics Condensed Matter::Quantum Gases Physics Quantum Physics quantum metrology Quantum fisher information lcsh:QC1-999 Range (mathematics)symbols lcsh:Q Closed-form expression Quantum Physics (quant-ph)lcsh:Physics

description

In this article we derive a closed form expression for the symmetric logarithmic derivative of Fermionic Gaussian states. This provides a direct way of computing the quantum Fisher Information for Fermionic Gaussian states. Applications ranges from quantum Metrology with thermal states and non-equilibrium steady states with Fermionic many-body systems.

year	journal	country	edition	language
2018-06-22

10.3390/e20070485 http://hdl.handle.net/10447/295210

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